| 高强度铝合金腐蚀损伤检测实验研究 |
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| 引用本文： | 张伟,吕胜利,李兆凯,吕国志,安国锋. 高强度铝合金腐蚀损伤检测实验研究[J]. 机械科学与技术, 2011, 0(2): 216-218 |
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| 作者姓名： | 张伟 吕胜利 李兆凯 吕国志 安国锋 |
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| 作者单位： | 西北工业大学无人机特种技术国防科技重点实验室;西北工业大学航空学院;长安大学汽车学院; |
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| 基金项目： | 国家科技支撑计划项目(2007BAB27B06)资助 |
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| 摘 要： | 在实验室环境下对LC4铝合金进行加速腐蚀试验,用超声C扫描机对试件表面腐蚀损伤特性进行检测,可明显识别单蚀坑及多蚀坑连通区域.用数码显微镜观测单蚀坑表面形貌近似为一个圆形,而且在一个尺寸较大主蚀坑边缘还有若干次蚀坑,首次采用激光位移传感器测量腐蚀坑深度,综合多种测量结果,进行腐蚀损伤形貌研究,经过统计分析点蚀最大坑深度...
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| 关 键 词： | 点蚀 超声扫描 激光位移传感测量 蚀坑断面形貌 |
Detection of Pit-corrosion Damage in High Strength Aluminum Alloy |
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| Abstract: | Accelarated corrosion tests of LC4 high strength aluminum alloy were performed in the laboratory environment,and corrosion damage information were obtained by using a variety of testing methods.Characteristics of corrosion damage on specimen surface were detected by using ultrasonic C-scanning system,and the single pit and connected regions of multiple pits were obviously recognized.Surface morphology of the single pit was approximate to a circular under a digital microscope,and a large pit was surrounded b... |
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| Keywords: | pit-corrosion ultrasonic scanning laser displacement sensor pits cross-section morphology |
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